Lidar Bathymetry Data of Cape Canaveral, Florida, (2014) in XYZ ASCII text file format

The Cape Canaveral Coastal System (CCCS) is a prominent feature along the Southeast U.S. coastline and is the only large cape south of Cape Fear, North Carolina. Most of the CCCS lies within the Merritt Island National Wildlife Refuge and included in its boundaries are the Cape Canaveral Air Force Station (CCAFS), NASA’s Kennedy Space Center (KSC), and a large portion of Canaveral National Seashore. The actual promontory of the modern cape falls within the jurisdictional boundaries of the CCAFS. These various agencies have ongoing concerns related to erosion hazards and vulnerability of the system including critical infrastructure, habitats, and recreational and cultural resources. The USGS conducted a bathymetric mapping survey August 18-20, 2014, in the Atlantic Ocean offshore of Cape Canaveral, Florida (USGS Field Activity Number 2014-324-FA). The study area covered an area extending south from Port Canaveral, Florida, to the northern end of the KSC property and from the shoreline to about 2.5 km offshore. Bathymetric data were collected with single-beam sonar- and lidar-based systems. Two jet skis and a 17-ft outboard motor boat equipped with the USGS SANDS hydrographic system collected precision sonar data. The sonar operations were conducted in three missions, one on each day, with the boat and jet skis operating concurrently. The USGS airborne EAARL-B mapping system flown in a twin engine plane was used to collect lidar data. The lidar operations were conducted in three missions, one in the afternoon of August 19, 2015, and two more in the morning and afternoon of August 20, 2014. The missions were synchronized such that there was some temporal and spatial overlap between the sonar and lidar operations. Additional data were collected to evaluate the actual water clarity corresponding to lidar's ability to receive bathymetric returns. This dataset serves as an archive of processed single-beam and lidar bathymetry data collected at Cape Canaveral, Florida, in 2014 (in XYZ comma delimited, ASCII and shapefile format). Also included in this archive are Geographic Information System (GIS) data products: gridded map data (in ESRI binary and ASCII grid format), and a color-coded bathymetry map (in PDF format).卡纳维拉尔角海岸系统（Cape Canaveral Coastal System, CCCS）是美国东南海岸线一处极具代表性的地貌单元，同时也是北卡罗来纳州费尔角以南唯一的大型海岬。该系统的绝大部分区域隶属于梅里特岛国家野生动物保护区，其管辖范围涵盖卡纳维拉尔角空军基地（Cape Canaveral Air Force Station, CCAFS）、美国国家航空航天局（National Aeronautics and Space Administration, NASA）肯尼迪航天中心（Kennedy Space Center, KSC）以及卡纳维拉尔角国家海岸的大片区域。现代海岬的实际岬角主体处于卡纳维拉尔角空军基地的管辖边界内。上述多个管理机构长期关注该系统面临的侵蚀灾害与系统脆弱性问题，涉及关键基础设施、自然栖息地、休闲与文化资源。美国地质调查局（United States Geological Survey, USGS）于2014年8月18日至20日，在佛罗里达州卡纳维拉尔角近岸大西洋海域开展水深测绘调查（USGS野外活动编号：2014-324-FA）。本次研究区域北起佛罗里达州卡纳维拉尔港，南至肯尼迪航天中心用地北端，西起海岸线，向海延伸约2.5公里。水深数据通过单波束声呐与激光雷达（Light Detection and Ranging, lidar）系统采集。两台水上摩托与一艘搭载USGS SANDS水文系统的17英尺舷外机快艇负责采集高精度声呐数据，作业分为三个航次，每日开展一个航次，快艇与水上摩托同步运行。美国地质调查局搭载于双引擎飞机的机载EAARL-B测绘系统用于采集激光雷达数据，激光雷达作业同样分为三个航次：2015年8月19日下午一次，2014年8月20日上午与下午各一次。各航次进行了同步规划，使得声呐与激光雷达作业在时间与空间上存在部分重叠。此外还额外开展了数据采集工作，用于评估匹配激光雷达水深回波接收能力的实际水体透明度。本数据集为2014年在佛罗里达州卡纳维拉尔角采集的经处理单波束声呐与激光雷达水深测绘数据的存档，数据格式包括以逗号分隔的XYZ格式ASCII文件与形状文件（shapefile）。本存档还包含地理信息系统（Geographic Information System, GIS）数据产品：网格化地图数据（ESRI二进制与ASCII网格格式）以及彩色编码水深地图（PDF格式）。